HHsearch alignment for GI: 254781193 and conserved domain: cd06143

>cd06143 PAN2_exo PAN2 is the catalytic subunit of poly(A) nuclease (PAN), a Pab1p-dependent 3'-5' exoribonuclease which plays an important role in the posttranscriptional maturation of pre-mRNAs. PAN catalyzes the deadenylation of poly(A) tails, which are initially synthesized to default lengths of 70 to 90, to mRNA-specific lengths of 55 to 71. Pab1p and PAN also play a role in the export and decay of mRNA. PAN2 contains a DEDDh-type DnaQ-like 3'-5' exonuclease domain with three conserved sequence motifs termed ExoI, ExoII and ExoIII, with a specific Hx(4)D conserved pattern at ExoIII. These motifs are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis.
Probab=94.18  E-value=0.098  Score=29.63  Aligned_cols=52  Identities=23%  Similarity=0.236  Sum_probs=35.1

Q ss_pred             HCCCCCEEEEEEHHHHHHHHHHHCCCCCCCCCEEEHHHHHHHHC-CCCCHHHHHHHC
Q ss_conf             63889819997307749999986089988420331688999867-899968989982
Q gi|254781193|r   61 LENTDVTIVAHNSYFERTVLKACFNLDIPIHRWICTLVLARSNG-LPSALKAVGEAL  116 (675)
Q Consensus        61 L~~~~~~kV~HNa~FD~~~L~~~~Gi~i~~~~~~DTmi~A~~l~-~~~sL~~la~~l  116 (675)
T Consensus        98 li~~~~ILVGHsL~nDL~aL----~l~hP~~~i~DTs~l~~~~~~r~~sLk~La~~~  150 (174)
T cd06143          98 LVDLGCIFVGHGLAKDFRVI----NIQVPKEQVIDTVELFHLPGQRKLSLRFLAWYL  150 (174)
T ss_pred             HCCCCCEEECCCCHHHHHHH----CCCCCCCCEEECHHHCCCCCCCCCCHHHHHHHH
T ss_conf             54799689789636679885----066998665777885268998870899999998